Hi,
when I try to use the snd-fireworks driver with my AudioFire4 (see the output of /proc/asound/cardX/firewire/firmware below) on my machine (kernel 4.1), it doesn't work. I am experiencing exactly the same problems as Harry with his AudioFire2 [1]; dmesg was reporting discontinuities.
A few days ago, I saw Takashi Sakamoto's most recent patch for making the AudioFire2 work in this case [2]. I adapted his patch (see below) to apply to my situation with the AudioFire4 and now it is working flawlessly! However, according to the README in Takashi's GitHub repository [3], he is testing the driver with an AudioFire4 as well, so I asked him why I need this patch and he does not. He told me he is using firmware version 5.5 while I'm on 5.7.3. He said he is going to test his device with different firmware versions soon and write a patch, if needed.
Finally, he asked me to post this whole issue to this list as well and that's what I have just done. :)
Best regards, Johannes
[1] http://mailman.alsa-project.org/pipermail/alsa-devel/2014-August/080379.html [2] http://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/?id=9c689... [3] https://github.com/takaswie/snd-firewire-improve
/proc/asound/cardX/firewire/firmware: guid_hi: 0x148604 guid_lo: 0x5BA8D7BF type: 0xAF4 version: 0x0 vendor_name: Echo Digital Audio model_name: AudioFire4 dsp_version: 0x0 arm_version: 0x5070300 fpga_version: 0x3000200 flags: 0xE1 max_sample_rate: 0x17700 min_sample_rate: 0x7D00 supported_clock: 0x9 phys out: 0x6 phys in: 0x6 phys in grps: 0x2 phys in grp[0]: type 0x0, count 0x4 phys in grp[1]: type 0x1, count 0x2 phys out grps: 0x2 phys out grps[0]: type 0x0, count 0x4 phys out grps[1]: type 0x1, count 0x2 amdtp rx pcm channels 1x: 0x6 amdtp tx pcm channels 1x: 0x6 amdtp rx pcm channels 2x: 0x6 amdtp tx pcm channels 2x: 0x6 amdtp rx pcm channels 4x: 0x6 amdtp tx pcm channels 4x: 0x6 midi out ports: 0x1 midi in ports: 0x1 mixer playback channels: 0x6 mixer capture channels: 0x6
The patch: --- sound/firewire/fireworks/fireworks.c | 2 ++ sound/firewire/fireworks/fireworks.h | 1 + sound/firewire/fireworks/fireworks_stream.c | 4 ++-- 3 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c index c670db4..544bdbf 100644 --- a/sound/firewire/fireworks/fireworks.c +++ b/sound/firewire/fireworks/fireworks.c @@ -250,6 +250,8 @@ efw_probe(struct fw_unit *unit, goto error; if (entry->model_id == MODEL_ECHO_AUDIOFIRE_2) efw->is_af2 = true; + if (entry->model_id == MODEL_ECHO_AUDIOFIRE_4) + efw->is_af4 = true; if (entry->model_id == MODEL_ECHO_AUDIOFIRE_9) efw->is_af9 = true;
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h index 9493122..9a7dcbb 100644 --- a/sound/firewire/fireworks/fireworks.h +++ b/sound/firewire/fireworks/fireworks.h @@ -74,6 +74,7 @@ struct snd_efw {
/* for quirks */ bool is_af2; + bool is_af4; bool is_af9; u32 firmware_version;
diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c index a0762dd..182b96f 100644 --- a/sound/firewire/fireworks/fireworks_stream.c +++ b/sound/firewire/fireworks/fireworks_stream.c @@ -172,8 +172,8 @@ int snd_efw_stream_init_duplex(struct snd_efw *efw) efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT; /* Fireworks reset dbc at bus reset. */ efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK; - /* AudioFire2 starts packets with non-zero dbc. */ - if (efw->is_af2) + /* AudioFire2 and AudioFire4 start packets with non-zero dbc. */ + if (efw->is_af2 || efw->is_af4) efw->tx_stream.flags |= CIP_SKIP_INIT_DBC_CHECK; /* AudioFire9 always reports wrong dbs. */ if (efw->is_af9)